State profile · Above median Poor share

Pennsylvania bridge safety

According to the Federal Highway Administration's 2024 National Bridge Inventory, condition ratings, load ratings, and Poor-condition shares for every public highway bridge in Pennsylvania.

23,299
Public bridges
34.0%
Good condition
12.6%
Poor condition

Pennsylvania holds 23,299 public highway bridges (#8 of 52 by inventory) with a 12.58% Poor share (#7 of 52 by Poor share).

That is 12.6% of the state's inventory, against an average of 7.5% across the 54 states and territories with Poor-rated bridges on file, which places it 46 of 54 ordered from the lowest Poor share upward. A bridge is rated Poor when its weakest applicable component scores 4 or below on the inspecting agency's 0-9 scale, so the category is a maintenance and funding signal rather than a closure order or a live crossing-safety verdict.

Inventory: FHWA NBI 2024 · last ETL August 2026

Total Bridges

23,299

Public highway bridges in Pennsylvania

Good Condition

34.0%

7,915 bridges rated 7-9

-16.0pp vs 50% benchmark

Poor Condition

12.6%

2,932 bridges whose lowest applicable component is rated 0-4

5.1pp vs national avg 7.5%

Pennsylvania vs national bridge condition

Pennsylvania - Good condition share 34.0%
National avg

Share of bridges rated 7-9 on the FHWA 0-9 scale (deck, superstructure, substructure all good).

Pennsylvania - Poor-condition share 41.9%
National avg

Lower is better. Bar maxes at 30% (worst-state ceiling). National average sits at 7.5%.

Pennsylvania in the national condition pattern

Each point is a state or territory in the FHWA NBI; the highlighted point is this profile.

Inventory size and Poor-condition share are different measures: Pennsylvania has 23,299 bridges and a 12.6% Poor-condition share in the 2024 NBI, rank #46 of 54 jurisdictions ordered from the lowest share upward. The dashed comparisons mark the national average state rate and the midpoint of the plotted inventory range; neither is a live safety or closure threshold. Scatter plot of 54 data points. 0%10%20%30%40% 0k20k40k60k Public bridges in inventory (thousands) Poor-condition share (%) PA, Public bridges in inventory (thousands): 23.3k · Poor-condition share (%): 12.58%AL, Public bridges in inventory (thousands): 16.2k · Poor-condition share (%): 3.35%AK, Public bridges in inventory (thousands): 1.7k · Poor-condition share (%): 7.89%AZ, Public bridges in inventory (thousands): 8.6k · Poor-condition share (%): 1.15%AR, Public bridges in inventory (thousands): 13k · Poor-condition share (%): 5.43%CA, Public bridges in inventory (thousands): 25.8k · Poor-condition share (%): 5.91%CO, Public bridges in inventory (thousands): 9k · Poor-condition share (%): 4.82%CT, Public bridges in inventory (thousands): 4.4k · Poor-condition share (%): 4.72%DE, Public bridges in inventory (thousands): 0.9k · Poor-condition share (%): 1.26%DC, Public bridges in inventory (thousands): 0.3k · Poor-condition share (%): 1.95%FL, Public bridges in inventory (thousands): 13k · Poor-condition share (%): 2.79%GA, Public bridges in inventory (thousands): 15.1k · Poor-condition share (%): 1.59%GU, Public bridges in inventory (thousands): 0k · Poor-condition share (%): 12.77%HI, Public bridges in inventory (thousands): 1.2k · Poor-condition share (%): 6.53%ID, Public bridges in inventory (thousands): 4.6k · Poor-condition share (%): 4.9%IL, Public bridges in inventory (thousands): 26.9k · Poor-condition share (%): 9.35%IN, Public bridges in inventory (thousands): 19.5k · Poor-condition share (%): 5.22%IA, Public bridges in inventory (thousands): 23.7k · Poor-condition share (%): 19.16%KS, Public bridges in inventory (thousands): 24.9k · Poor-condition share (%): 5.26%KY, Public bridges in inventory (thousands): 14.5k · Poor-condition share (%): 7.37%LA, Public bridges in inventory (thousands): 12.7k · Poor-condition share (%): 11.48%ME, Public bridges in inventory (thousands): 2.5k · Poor-condition share (%): 15.41%MD, Public bridges in inventory (thousands): 5.5k · Poor-condition share (%): 4.56%MA, Public bridges in inventory (thousands): 5.3k · Poor-condition share (%): 8.88%MI, Public bridges in inventory (thousands): 11.4k · Poor-condition share (%): 11.27%MN, Public bridges in inventory (thousands): 13.5k · Poor-condition share (%): 4.44%MS, Public bridges in inventory (thousands): 16.7k · Poor-condition share (%): 6.03%MO, Public bridges in inventory (thousands): 24.6k · Poor-condition share (%): 8.95%MT, Public bridges in inventory (thousands): 5.2k · Poor-condition share (%): 6.81%NE, Public bridges in inventory (thousands): 15.4k · Poor-condition share (%): 7.9%NV, Public bridges in inventory (thousands): 2.1k · Poor-condition share (%): 1.14%NH, Public bridges in inventory (thousands): 2.5k · Poor-condition share (%): 7.51%NJ, Public bridges in inventory (thousands): 6.8k · Poor-condition share (%): 6.01%NM, Public bridges in inventory (thousands): 4k · Poor-condition share (%): 4.51%NY, Public bridges in inventory (thousands): 17.6k · Poor-condition share (%): 9.43%NC, Public bridges in inventory (thousands): 19.2k · Poor-condition share (%): 6.76%ND, Public bridges in inventory (thousands): 4.3k · Poor-condition share (%): 10.98%OH, Public bridges in inventory (thousands): 26.7k · Poor-condition share (%): 4.74%OK, Public bridges in inventory (thousands): 22.9k · Poor-condition share (%): 7.7%OR, Public bridges in inventory (thousands): 8.3k · Poor-condition share (%): 4.61%PR, Public bridges in inventory (thousands): 2.4k · Poor-condition share (%): 13.92%RI, Public bridges in inventory (thousands): 0.8k · Poor-condition share (%): 15.2%SC, Public bridges in inventory (thousands): 9.5k · Poor-condition share (%): 6.17%SD, Public bridges in inventory (thousands): 5.9k · Poor-condition share (%): 16.36%TN, Public bridges in inventory (thousands): 20.4k · Poor-condition share (%): 4.41%TX, Public bridges in inventory (thousands): 56.7k · Poor-condition share (%): 1.23%UT, Public bridges in inventory (thousands): 3.1k · Poor-condition share (%): 2.91%VT, Public bridges in inventory (thousands): 2.9k · Poor-condition share (%): 2.9%VI, Public bridges in inventory (thousands): 0k · Poor-condition share (%): 29.17%VA, Public bridges in inventory (thousands): 14.1k · Poor-condition share (%): 3.39%WA, Public bridges in inventory (thousands): 8.5k · Poor-condition share (%): 5.45%WV, Public bridges in inventory (thousands): 7.3k · Poor-condition share (%): 18.64%WI, Public bridges in inventory (thousands): 14.4k · Poor-condition share (%): 6.52%WY, Public bridges in inventory (thousands): 3.1k · Poor-condition share (%): 6.51%
Inventory size and Poor-condition share are different measures: Pennsylvania has 23,299 bridges and a 12.6% Poor-condition share in the 2024 NBI, rank #46 of 54 jurisdictions ordered from the lowest share upward. The dashed comparisons mark the national average state rate and the midpoint of the plotted inventory range; neither is a live safety or closure threshold.

Pennsylvania vs all states by public bridge inventory

Where this state's FHWA NBI public-highway bridge count sits among every state and territory on PlainBridges

23,299 8th of 54 higher than 46 of 54 states

States and territories, banded by public bridge inventory size

Each bar is a band; taller bars hold more states. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.

Source FHWA National Bridge Inventory · 2024

Read the rank neighborhood for Pennsylvania

The highlighted point is Pennsylvania: 23,299 bridges and 12.58% in Poor condition, rank #46 of 54 jurisdictions ordered from the lowest share upward. The five jurisdictions immediately above and below Pennsylvania on that same Poor-share ordering:

  • Michigan: 11,371 bridges · 11.27% Poor
  • Louisiana: 12,698 bridges · 11.48% Poor
  • Pennsylvania: 23,299 bridges · 12.58% Poor
  • Guam: 47 bridges · 12.77% Poor
  • Puerto Rico: 2,385 bridges · 13.92% Poor

The full national sortable table lives on the rankings page.

Material families in Pennsylvania

Exclusive FHWA material families across all 23,299 bridges in this state; continuous variants fold into the parent family. Orthogonal to the Poor-share scatter above.

Who maintains Pennsylvania’s inventory

State agency holds 70.3% of the 23,299 public highway bridges filed under Pennsylvania in the 2024 NBI, the agency-of-record split for this state, not a condition verdict.

When Pennsylvania’s bridges were built

Pre-1950 construction accounts for 24.8% of the 23,299 bridges with a recorded original year in Pennsylvania. Era bands are orthogonal to the Poor-share ranking above.

Condition Distribution

Pennsylvania34%53.4%12.6%GoodFairPoor
Bridge inventory deck-condition mix - Pennsylvania (FHWA NBI)

Counties (67)

Adams 254 Allegheny 1294 Armstrong 263 Beaver 299 Bedford 417 Berks 667 Blair 338 Bradford 399 Bucks 699 Butler 378 Cambria 284 Cameron 62 Carbon 134 Centre 367 Chester 680 Clarion 172 Clearfield 292 Clinton 212 Columbia 271 Crawford 399 Cumberland 348 Dauphin 449 Delaware 387 Elk 127 Erie 442 Fayette 422 Forest 71 Franklin 294 Fulton 159 Greene 306 Huntingdon 238 Indiana 301 Jefferson 202 Juniata 169 Lackawanna 363 Lancaster 801 Lawrence 265 Lebanon 228 Lehigh 381 Luzerne 457 Lycoming 482 McKean 226 Mercer 438 Mifflin 196 Monroe 315 Montgomery 828 Montour 108 Northampton 356 Northumberland 299 Perry 183 Philadelphia 585 Pike 158 Potter 207 Schuylkill 368 Snyder 161 Somerset 454 Sullivan 119 Susquehanna 284 Tioga 429 Union 163 Venango 189 Warren 217 Washington 655 Wayne 259 Westmoreland 620 Wyoming 140 York 569

Pennsylvania vs nearby ranks

Adjacent states by Poor-condition share (lower share = better)

States are ranked by the share of bridges whose lowest applicable component rating is 4 or below. This describes recorded condition; it does not measure funding effectiveness or live crossing safety. States here sit immediately above and below Pennsylvania on the same metric.

MI

Michigan

11.27% top marginal rate
Structure
Progressive
Burden @ $100K
$11,371

LA

Louisiana

11.48% top marginal rate
Structure
Progressive
Burden @ $100K
$12,698
Selected

PA

Pennsylvania

12.58% top marginal rate
Structure
Progressive
Burden @ $100K
$23,299

GU

Guam

12.77% top marginal rate
Structure
Progressive
Burden @ $100K
$47

PR

Puerto Rico

13.92% top marginal rate
Structure
Progressive
Burden @ $100K
$2,385

Bridges Needing Most Attention in Pennsylvania

Six lowest-condition bridges in Pennsylvania, ranked by the portal's composite display score. Inspection intervals are risk-based under current NBIS rules.

BLVD OF THE ALLIES

Poor

Over: CSX RR & BIKE TRAIL

005 Charles Anderson Brid, Allegheny, PA

Built 1938 Load: 0.0 t ADT: 21,211

TIMBERLAND AV

Poor

Over: SAW MILL RUN CREEK

113 Timberland Ave, Allegheny, PA

Built 1909 Load: 0.0 t ADT: 30

FREMONT ST

Poor

Over: GIRTYS RUN

FREMONT 25 FROM NORTH AV, Allegheny, PA

Built 1911 Load: 0.0 t ADT: 50

OLD WILLIAMPENN HW

Poor

Over: THOMPSON RUN CREEK

446002 OLD WM PENN HGWY, Allegheny, PA

Built 1900 Load: 0.0 t ADT: 300

FALLSTON BR

Poor

Over: BEAVER RIVER

004026 FALLSTON BRIDGE, Beaver, PA

Built 1884 Load: 0.0 t ADT: 6,523

ELEVENTH AVENUE ET

Poor

Over: BLOCKHOUSE RUN

423005 100 YD /13 ST INT, Beaver, PA

Built 1925 Load: 0.0 t

All Bridges in Pennsylvania

SR 1002

Fair

Over: BIG RUN

2 MI W OAKLAND MILLS, Juniata, PA

Built 1937 Load: 56.2 t ADT: 507

PA TPK (I-376)

Fair

Over: T-409

NORTH BEAVER TWP., Lawrence, PA

Built 1992 Load: 56.2 t ADT: 9,871

PA 241; Colebrook

Fair

Over: BECK CREEK

ROCHERTY, Lebanon, PA

Built 1984 Load: 56.2 t ADT: 8,984

US 22 EB

Fair

Over: I 78 &T-572(TRI LEVEL)

FLYOVER I-78, Lehigh, PA

Built 1988 Load: 56.2 t ADT: 24,762

PA 100(LR 486)

Fair

Over: TRIB. SWOPE CREEK

MAIN STREET MACUNGIE, Lehigh, PA

Built 1960 Load: 56.2 t ADT: 12,643

PA 309(LR 163)

Fair

Over: JORDAN CREEK

GUTHSVILLE, Lehigh, PA

Built 1956 Load: 56.2 t ADT: 20,836

SR 1002 (LR 157)

Fair

Over: JORDAN CREEK & STREETS

TILGHMAN ST BRIDGE, Lehigh, PA

Built 1986 Load: 56.2 t ADT: 10,064

SR 346-PA 346

Fair

Over: WEST BRANCH TUNUNGWANT C

CITY OF BRADFORD, McKean, PA

Built 1905 Load: 56.2 t ADT: 10,204

SR 54

Fair

Over: OVER CHILLISQUAQUE CR.

1 MI N OF WASHINGTONVILLE, Montour, PA

Built 1992 Load: 56.2 t ADT: 2,949

US 219 NBL

Fair

Over: PA 281

2 MI. NE OF SOMERSET, Somerset, PA

Built 1973 Load: 56.2 t ADT: 5,453

SR 2020

Fair

Over: BRUSH CREEK

2 MI.NW.OF FAIRHOPE, Somerset, PA

Built 1962 Load: 56.2 t ADT: 87

SR 4019

Fair

Over: BLACK CREEK

12.5 MI.NE.FORKSVILLE, Sullivan, PA

Built 1961 Load: 56.2 t ADT: 145

SR 0081 I-81 NB

Fair

Over: CENTRAL NEW YORK RR

GREAT BEND BO .2M N TR171, Susquehanna, PA

Built 1959 Load: 56.2 t ADT: 9,678

SR 0014

Fair

Over: ROARING BRANCH CREEK

1 MI S OF ROARING BRANCH, Tioga, PA

Built 1988 Load: 56.2 t ADT: 2,362

SR 0015 (TR 15)

Fair

Over: OVER S.R. 1010

VILLAGE OF WHITE DEER, Union, PA

Built 1963 Load: 56.2 t ADT: 15,598

SR 0019

Fair

Over: LITTLE TENMILE CREEK

AMWELL TOWNSHIP, Washington, PA

Built 1965 Load: 56.2 t ADT: 3,101

SR 0371 TR 371

Fair

Over: JOHNSON CREEK

MT PLEASNT TP 1M W SR4029, Wayne, PA

Built 1992 Load: 56.2 t ADT: 434

SR 0119

Fair

Over: SW PA R/R & PVT RD

EAST HUNTINGDON TOWNSHIP, Westmoreland, PA

Built 1977 Load: 56.2 t ADT: 13,819

SR 0201

Fair

Over: SR 0070

ROSTRAVER TOWNSHIP, Westmoreland, PA

Built 1954 Load: 56.2 t ADT: 18,313

SR 3013

Fair

Over: SR 3009

ROSTRAVER TOWNSHIP, Westmoreland, PA

Built 1988 Load: 56.2 t ADT: 11,409

SR 0006 TR 6

Fair

Over: TUNKHANNOCK CREEK

TUNKHANNCK T .5M E SR2035, Wyoming, PA

Built 1956 Load: 56.2 t ADT: 7,716

BARRENS CHURCH RD

Fair

Over: TRIB TO BERMUDIAN CREEK

2 MI SOUTH FRANKLINTOWN, York, PA

Built 2001 Load: 56.2 t ADT: 50

INTERSTATE 95

Fair

Over: RAMP A OFF RAMP TO BRIDG

NR.MARGARET STR. 3481J09, Philadelphia, PA

Built 1967 Load: 56.2 t ADT: 251,200

RIDGE AVENUE

Fair

Over: SEPTA

ROXBOROUGH 3479G08, Philadelphia, PA

Built 1928 Load: 56.2 t ADT: 15,381

16TH STREET

Fair

Over: VINE STR;RAMP 16V

VINE STREET EXWY. 3590D07, Philadelphia, PA

Built 1990 Load: 56.2 t ADT: 12,793

SR 1005 (LR 548)

Fair

Over: PTC B-426 MP 118.21

1.02 MILE N. FROM PA 31, Somerset, PA

Built 2001 Load: 56.2 t ADT: 324

CHESTER SPRINGS RD

Fair

Over: PINE CREEK

NEAR ROUTE 401 13D11, Chester, PA

Built 2002 Load: 56.2 t ADT: 358

PA TPK (TOLL 43)

Fair

Over: SR 3017

2.5MI.N. OF FINLEYVILLE I, Allegheny, PA

Built 2002 Load: 56.2 t ADT: 3,617

T-537 Trout School

Fair

Over: South Branch Rambo Run

East Hopewell Township, York, PA

Built 2005 Load: 56.2 t ADT: 100

Prospect Avenue

Fair

Over: Septa RR Tracks

1 Mi S of Main St 3144G8, Montgomery, PA

Built 1995 Load: 56.2 t ADT: 2,500

JOHNSTON AVENUE

Fair

Over: SANDY RUN

0.2 MI E SUSQUEHANNA RD, Montgomery, PA

Built 1999 Load: 56.2 t ADT: 1,000

FOURTH AV

Fair

Over: BULL CREEK

464002 200 W OF ROSS ST, Allegheny, PA

Built 1970 Load: 57.0 t ADT: 3,000

RAMP F SB

Fair

Over: REEDSDALE ST.

West End Bridge, Allegheny, PA

Built 1991 Load: 57.0 t ADT: 3,924

CONSTITUTION BL

Fair

Over: DILWORTH RUN

1/4 MI.N.W.OF TWP.RD.625, Beaver, PA

Built 1953 Load: 57.2 t ADT: 9,067

SR 1009

Fair

Over: YELLOW CREEK

.5 MI.S.OF SR 26, Bedford, PA

Built 1954 Load: 57.2 t ADT: 324

T532 WEST CYPHER R

Fair

Over: PIPERS RUN

.7 MI.W.OF CYPHER, Bedford, PA

Built 1942 Load: 57.2 t ADT: 340

SR 4027/BUS US 220

Fair

Over: NORFOLK SOUTHERN RR

0.4 MILE SOUTH OF SR 4025, Blair, PA

Built 1939 Load: 57.2 t ADT: 6,463

SR 2010

Fair

Over: TRIB.TO SUGAR RUN

VILLAGE OF EVERGREEN, Bradford, PA

Built 1959 Load: 57.2 t ADT: 820

SR 3001

Fair

Over: TOWANDA CREEK

.25 MILE S.OF W.FRANKLIN, Bradford, PA

Built 1975 Load: 57.2 t ADT: 93

W. PACKER AVENUE

Fair

Over: NORF SOUTH RR&LEHIGH AVE

W. PACKER AVE SAYRE BORO, Bradford, PA

Built 1985 Load: 57.2 t ADT: 5,350

DURHAM ROAD

Fair

Over: COOKS CREEK

EAST OF SPRINGTOWN 02K06, Bucks, PA

Built 1987 Load: 57.2 t ADT: 6,216

OLD BRIDGETOWN PK.

Fair

Over: IRON WORKS CREEK

2MI.W.LANGHORNE 36F10, Bucks, PA

Built 1938 Load: 57.2 t ADT: 4,040

RICHLANDTOWN ROAD

Fair

Over: TOHICKON CREEK

CAMP TOHICKANEE 08H13, Bucks, PA

Built 1974 Load: 57.2 t ADT: 690

SR0422 WB

Fair

Over: LAKE ARTHUR

MORAINE WB, Butler, PA

Built 1969 Load: 57.2 t ADT: 6,826

PA 53

Fair

Over: LITTLE CONEMAUGH RIVER

0.3 MILE NORTH OF TR 219, Cambria, PA

Built 1990 Load: 57.2 t ADT: 5,944

SR 4024

Fair

Over: CHEST CREEK

THOMAS MILL, Cambria, PA

Built 1961 Load: 57.2 t ADT: 269

SR 45-PA 45

Fair

Over: SPRUCE CREEK

BAILEYVILLE, Centre, PA

Built 1952 Load: 57.2 t ADT: 1,911

EAST CHRISTINE RD.

Fair

Over: EAST PENN RAILROAD

NR.NOTTINGHAM PK. 50K08, Chester, PA

Built 1985 Load: 57.2 t ADT: 6,184

SPROUL ROAD

Fair

Over: NSRC (EARNEST-GLEN)

FRAZER S. US 30 22H10, Chester, PA

Built 1998 Load: 57.2 t ADT: 8,997

ON-RAMP TO SR 3100

Fair

Over: TAYLOR RUN

US 322 INTERCH. 31K8, Chester, PA

Built 1955 Load: 57.2 t ADT: 983

Showing 11,301-11,350 of 23,299 bridges

Related

All states → | National rankings → | Understanding conditions → | Retired SD term explained →
Data sourced from the FHWA National Bridge Inventory (NBI), latest released cycle. See our methodology for details. Retrieved and formatted by PlainBridges.

Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from the FHWA National Bridge Inventory (NBI). Poor condition is an inspection-record category, not a closure or unsafe-to-cross designation. Consult the bridge owner for current status.

Understanding Bridge Conditions

How FHWA rates bridge condition on a 0-9 scale.

Check Your Daily Bridges

How to look up bridge condition data for bridges on your route.

Read our methodology — how this data is sourced, computed, and verified.

What to do with this

Use Pennsylvania's inventory picture to drill to a county or a specific span.

  • Browse counties in Pennsylvania and open the highest-Poor shares first. County list
  • See where this state sits among peers on Poor-condition share. State rankings
  • Compare this state with another jurisdiction on the same measures. State compare

NBI condition ratings are inventory snapshots, not live crossing-safety verdicts.

Every figure on PlainBridges is rendered directly from federal source data, no number is typed in by an editor. Pennsylvania Good/Fair/Poor shares and county rollups on this page are computed from the same NBI extract as the national boards; no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2024 NBI release. NBI condition categories reflect the latest reported inventory record, not a live safety, closure, or travel decision.